Abstract
The basic ideology involved behind this experimental scheme was to investigate the observed re-corrosion of the repaired reinforced concrete patches in actual field concrete works. From the experiment results it was found that the specimens having no chloride content at the middle portion showed high corrosion potential, and chloride-contaminated both sides of the specimen showed even more corrosion than before being repaired due to the separation of anode and cathode and development of a macro-cell. The research indicates that much of the needed research should focus on identification of corrosion mechanisms to effectuate the successful patch repair in reinforced concrete structures.